/* Copyright (C) 2011 rccloud.com All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.rccloud.gwtproxyc.server;

import com.rccloud.gwtproxyc.shared.ProxyConverter;
import com.rccloud.gwtproxyc.shared.annotation.AutoProxy;

/**
 * Converter for the field is GWT proxy object, it is used on nested converting.
 */
public class ProxyFieldConverter implements ProxyConverter {

	@Override
	public Object convertToProxy(Class<?> proxyFieldClass, Object object) {
		if (proxyFieldClass.isAnnotationPresent(AutoProxy.class)) {
			Object result = Proxy.fromProxy(proxyFieldClass, object);
			return result;
		}
		return null;
	}

	@Override
	public Object convertFromProxy(Object object) {
		if (object.getClass().isAnnotationPresent(AutoProxy.class)) {
			Class<?> entityClass = object.getClass()
					.getAnnotation(AutoProxy.class).value();
			Object result = Proxy.fromProxy(entityClass, object);
			return result;
		}
		return null;
	}

}
